Automobile-lock.



J. A. CAMPBELL.

AUTOMOBILE LOCK.

A PPLICATION FILED APR. 26. I917.

Patented Aug; 6, 1918..

2 SHEETS-SHEET l.

Patented Aug. 6 1918.

2 SHEETS-SHEET 2- STATES PATE JOHN A. CAMPBELL, 0F CARBONDALE, ILLINOIS.

AUTOMOBILE-LOCK.

Specification of Letters Patent.

Patented Aug. #61, 191e,

Application filed April 28, 1917. Serial No. 164,775.

To all whom it may concern Be it known that I, JOHN A. CA PBELL, a

citizen of the United States, residing at Carbondale, in the county of Jackson and State of Illinois, have invented certain newand useful Improvements in Automobile- Locks, of which the followingis a specification. My invention relates to new and useful improvements-in locking devices for selfpropelled vehicles and hasfor its primary object the provision of a device which may be readily applied to automobiles of conventional design and which, while employ-y ing only a single key operatedlock, ma be manipulated to lock the clutch control ing member in inactive positionand the brake it will not be in the way and where it can;

not mar the appearance of the vehicle.

Another object which I have in view is the provision of supplemental lockin de vices controlled by the main locking evice for securing the toe boards and floor boards of the vehicle in place so as to j-preventi ac cess to the locking device by removal of any of these parts. I 1

With these and other objects in view, my

invention will be more fully described; illustrated in the accompanying. drawings, and then' specifically pointed out in the claims which are attached to and form a part of this application. In the drawings: Figure 1 is a plan 'view of my invention, parts of the vehicle being shown in dotted lines;

Fig. 2 is a fragmentary plan view of my invention, showing it in inactive position,

the parts being shown in active position n Fig. 1;

Fig. 3 is a view corresponding to Fig. 2,

showing the position of the parts when the lock is partially applied;

Fig. 4 is a fragmentary sectional view,

showing the lock actuating plunger and also showing the clutch pedal. in locked position' Fig. 5 is a fragmentary sectional view, showing the means employed in looking the emergency brake hand lever;

Fig. 6 is a perspective view of one of the lock supporting 0 cats;

Fig. 7 illustrates the type of cable guide employed Fig. 8 is a fragmentary sectional view showing one of t e locking bar receiving sockets;

bar.

cated in all the views of the the same reference characters.

In order'to lnsure a clear and accurate drawings by understanding of my invention I have illustratedit in connectlon with a motorvehicle Fig. Qisan elevation of the main locking Qorresponding andlike parts are referred to 1n the following description and indiof conventional type having a toe board 11 slotted for passage of the shank of a clutch pedal 13 and for passage of the shank 'of'a service brake pedal 15. The vehicle also has the usual floor board 16 slotted for passage of the emergency brake lever 18 which ispivotally supported beneath the floor boards.

My improved locking device-includesa" pair of locking bars 20 and 21 which are supported for sliding movement against the lower face of the toe board 11 by cleats 22,'

the construction of which is clearly shown in Fig. 6. These lockingbarsare mounted for movement transversely of the toe board and at their inner endsoverlap each other in spaced relation, one looking bar being preferably of considerably greater length.

than the other. The'opposed edges of the inner ends of the locking bars are provided with rack teeth 23 which mesh with an idler pinion 24 supported for rotation by the toe board so that movement of either 1ock- 'ing bar 20 in either direction will cause reverse movement of the other locking bar. When the locking bars are moved outwardly to their full extent. their outer ends seat in sockets 25 formed in the inner faces of the frame of the vehicle and thus serve to lock the toe board against displacement. A helical spring 26 normally serves to draw the lacking bar 20 and, consequently, the looking bar 21 inwardly. Disposed adjacent one edge of the locking bar 20 and secured against the lower face of the toe board s a key operated lock 27 of the pin or equivalent type, the key receiving plug 28 of wh ch is projected through a suitable opening formed in the toe board so that it may be readily accessible to the owner. The looking bolt 29 of this look 27 is adapted to seat either in a notch 30 formed in the adjacent edge of the locking bar 20 or in a communicating notch 31 which, however, is deeper than the notch 30. When the looking bars are moved outwardly to bring the notch 30 into alinement with the locking bolt 29, the ends of the locking bars will be just clear of the sockets 25, while further movement of the locking bar to bring the seat 31 into alinement with the locking bolt 29 will engage the ends of the locking bars in their seats 25.

A pair of abutments 32 and 33 are secured to the lower face of the locking bar 20 and project downwardly to such an extent that if the clutch and brake pedals are depressed and the locking bar 20 is moved outwardly to its full extent they will engage against the upper edges of theshanks of these pedals to hold the pedals in depressed position. ment 32 is of greater width than the shank of the pedal which it engages and is so arranged that it may be brought into engagement with the clutch pedal 'shank before the abutment 33 engages over the brake pedal shank and yet may still remain in engagement with the clutch pedal shank when the abutment 33 has been engaged by the brake pedal shank.

The locking bar 20 is formed in one edge with an eye 34 to which is secured one end of a cable 35 which is then passed through a guide '36 formed in the extension of one of the cleats 22 and is connected to the lower end of'a plunger 37 which is reciprocally mounted in a sleeve 38 set into the toe board and which, at its upper end, is provided with a toe piece 39. The amount of movement of this plunger and the length of the cable 35 are so proportioned that when the locking bar 20 is in its innermost or inactive position under the pull of the spring 26, the

- plunger will be held in its most upwardly extended position and the" cable will be tight, while when the plunger is depressed to its full extent, it will act through the cable to pull the locking bar 20 outwardly a sufficient distance to bring the seat 31 in alinement with the bolt 29.

It should be noted that the abut-' upwardly directed pivot ear 45 upon which is pivoted a pawl 46 cooperating with,

ratchet teeth 47 formed in the upper edge of the slide 44. A spring 48 normally serves to hold the pawl 46 out of engagement with the teeth, while a cable 49, connected to the outer end of the pawl 46 and run through a cable guide 50, best shown in Fig. 9, is

connected to an eye 51 formed upon the locking bar 20. This cable is so proportioned inlength that upon movement of the locking bar 20 to its extreme outer or active position, thepawl 46 will be swung into engagement with the teeth-47 against the action of the spring 48 to hold the emergency brake lever 18 in whatever position it occupies. Consequently, if the emergency brake lever is drawn back to apply the brakes which it controls, prior to moving the locking bars to active position, the emergency brakes will be locked in place. A book 52 secured to the lower face of the floor board has its bill portion extended in spaced relation thereto at a suitable point to engage beneath a roller- 53 carried by a' pin 54 projecting from the side of the brake lever 18 When the latter .is drawn to such-a position as to apply the I mount brackets 55 upon each of the side frame members of the vehicle and these brackets have guide lugs 56 which slidably support'locking slides 57 having locking lugs 58 adapted to be engaged by the horizontally disposed arms of L-shaped latches 59 secured to the intermediate portions of the lower edges of the hood. Springs 61 normally serve to hold the locking slides "in forward position and, consequently, out of engagement with the latches, while cables 62, which are secured to the rear ends of the slides, pass through suitable cable guides 50 and are secured to eyes 63 carried by the locking bars 20 and 21, act to draw the slides rearwardly to active position when the locking bars 20 and 21 are moved outwardly to locking position.

In describing the operation of my improved lock, it will assume that the parts are in inactive position, as shown in Fig. 2. Under these circumstances, when the driver of the vehicle wishes to lock it, he will apply the emergency'bra kes by swinging the brake lever 18 rearwardly. He will then hold the clutch pedal in depressedposition with one gaged against the side of the shank of the brake pedal 15. This operation merely locks the clutch pedal in inactive position. The operator will then depress the brake pedal 15 and again press upon the plunger to further move the locking bars 20 and 21 outwardly until, with the abutment 32 still holding the clutch pedal in depressed position, the abutment 33 has engaged over the upper edge of the shank of the brake pedal 15 when both pedals will be locked. Of course, it is assumed that as the locking bar 20 reached its first position the spring pressed locking bolt 29 sprang into engagement with the seat 30 to prevent return movement of the locking bars and that as soon as the locking bars reached the second named position, the bolt sprang further into engagement with the seat 31 to lock the bars against return movement.

The first position of the bars, after partial operation of the lock, is clearly shown in Fig. 3, while the fully locked position of the bars is shown in Fig. 1. When the loeking bars are thus fully extended, their ends engage in the sockets 25 of the frame to secure the toe board in place, the emergency brake lever is locked against swinging movement, and in turn locks the floor board in place, and the locking slides 57 have been moved rearwardlyto bring their lugs into engagement with the latches of the hood to lock the hood in place. Under these circumstances, all parts of the locking. mechanism are rendered inaccessible as any unauthorized person trying to reach them would be prevented from doing so as he could not move the toe board, floor board or hood to get at any of the parts. Furthermore, as all the brakes are applied and locked and inasmuch as the clutch is locked in inactive position, itwill be impossible to either start the vehicle, under its own power, or-to tow it. As soon, however, as the owner turns the key in the lock 27 to retract the locking bolt 29, the spring 26 will return the locking bars to their. innermost position, releasing the brake and clutch pedals and toe' board and permittlng the springs 61, and 48 to release the hood and emergency brake lever so that the emergency brake lever may be swung to inactive position to release the vehicle and also the floor board.

'Although lhave illustrated and described my invention in all its details'of construction, it will of course be understood that I do not limit myself'to such details, but reserve the right to make any changes, within the scope of the appended claims, without in the slightest degree departing from the spirit of my inventlon Having thus described the invention, what is claimed as new is:

1. In a locking device for motor vehicles,-

the combination with a removable toe board, and service brake and clutch pedals having their shanks movable through slots in the board, of means mounted upon the underside of the board adapted in active position to engage both pedal shanks to hold the pedals in depressed position and to also lock the board against removal.

2. In a locking device for motor vehicles,

the combination with a removable toe board,

movement upon the board and adapted in active position to engage attheir ends in sockets formed in the frame of the vehicle to lock the board'in place, abutments formed upon one of the locking bars to engage over the shanks of the pedals when they are depressed, means for moving the locking bars to active position,'and a key controlled'lock for automatically securing the bars in active position. 3. In a lock for motor vehicles, the combination with service brake and clutch pedals, of means for locking the pedals in depressed position, a spring normally holding such means in inactive position, and step by step means for bringing the locking 'means to active position.

"I. In a lock for motor vehicles, the'combination with service brake" and clutch pedals, of means for locking the pedals in depressed position, a spring normally hold:

ing such means in inactive position, and step by step means for bringingthe locking means to active position, said step by step means operating to first lock one pedal and then look the other, the first pedal still remaining locked. p i

5. In a lock for motor vehicles, the combination with a service brake'pedal and a clutch pedal, of means for locking the pedals in depressed position, means operable after depression of one of the pedals for bringing the locking means to semi-active position to lock such pedal and operable after depression of the other pedal for bringing the locking means to active position to lock both emme pedals, and means for automatically and means for holding said locking bar normally successively securing the locking means in in inactive osition, a plunger operatively 10 its semiactive and active positions. eonnecled with said locking bar in move the 6. In a lock for motor vehicles, the comsome to active osition, end key-controlled 5 bination with a clutch controlling member, means for securing the locking bar in active and a brake-controlling member of a lockposition. ing bar movable into active position to hold lln testin'lon whereof ll allix my signature. 15 the clutch released and the brakes applied, J0 N A. CAMPBELL. L.S.] 

